/* $Id: tiff.h,v 1.43 2006-10-05 15:20:40 dron Exp $ */

/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 *
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 *
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

#ifndef _TIFF_
#define _TIFF_

#include "tiffconf.h"

/*
 * Tag Image File Format (TIFF)
 *
 * Based on Rev 6.0 from:
 *    Developer's Desk
 *    Aldus Corporation
 *    411 First Ave. South
 *    Suite 200
 *    Seattle, WA  98104
 *    206-622-5500
 *
 *    (http://partners.adobe.com/asn/developer/PDFS/TN/TIFF6.pdf)
 *
 * For Big TIFF design notes see the following link
 *    http://www.remotesensing.org/libtiff/bigtiffdesign.html
 */
#define TIFF_VERSION            42
#define TIFF_BIGTIFF_VERSION    43

#define TIFF_BIGENDIAN      0x4d4d
#define TIFF_LITTLEENDIAN   0x4949
#define MDI_LITTLEENDIAN        0x5045
#define MDI_BIGENDIAN           0x4550
/*
 * Intrinsic data types required by the file format:
 *
 * 8-bit quantities int8/uint8
 * 16-bit quantities    int16/uint16
 * 32-bit quantities    int32/uint32
 * strings      unsigned char*
 */

#ifndef HAVE_INT8
typedef signed char int8;   /* NB: non-ANSI compilers may not grok */
#endif
typedef unsigned char uint8;
#ifndef HAVE_INT16
typedef short int16;
#endif
typedef unsigned short uint16;  /* sizeof (uint16) must == 2 */
#if SIZEOF_INT == 4
#ifndef HAVE_INT32
typedef int int32;
#endif
typedef unsigned int uint32;    /* sizeof (uint32) must == 4 */
#elif SIZEOF_LONG == 4
#ifndef HAVE_INT32
typedef long int32;
#endif
typedef unsigned long uint32;   /* sizeof (uint32) must == 4 */
#endif

/* For TIFFReassignTagToIgnore */
enum TIFFIgnoreSense /* IGNORE tag table */
{
    TIS_STORE,
    TIS_EXTRACT,
    TIS_EMPTY
};

/*
 * TIFF header.
 */
typedef struct {
    uint16  tiff_magic; /* magic number (defines byte order) */
#define TIFF_MAGIC_SIZE     2
    uint16  tiff_version;   /* TIFF version number */
#define TIFF_VERSION_SIZE   2
    uint32  tiff_diroff;    /* byte offset to first directory */
#define TIFF_DIROFFSET_SIZE 4
} TIFFHeader;


/*
 * TIFF Image File Directories are comprised of a table of field
 * descriptors of the form shown below.  The table is sorted in
 * ascending order by tag.  The values associated with each entry are
 * disjoint and may appear anywhere in the file (so long as they are
 * placed on a word boundary).
 *
 * If the value is 4 bytes or less, then it is placed in the offset
 * field to save space.  If the value is less than 4 bytes, it is
 * left-justified in the offset field.
 */
typedef struct {
    uint16      tdir_tag;   /* see below */
    uint16      tdir_type;  /* data type; see below */
    uint32      tdir_count; /* number of items; length in spec */
    uint32      tdir_offset;    /* byte offset to field data */
} TIFFDirEntry;

/*
 * NB: In the comments below,
 *  - items marked with a + are obsoleted by revision 5.0,
 *  - items marked with a ! are introduced in revision 6.0.
 *  - items marked with a % are introduced post revision 6.0.
 *  - items marked with a $ are obsoleted by revision 6.0.
 *  - items marked with a & are introduced by Adobe DNG specification.
 */

/*
 * Tag data type information.
 *
 * Note: RATIONALs are the ratio of two 32-bit integer values.
 */
typedef enum {
    TIFF_NOTYPE = 0,    /* placeholder */
    TIFF_BYTE   = 1,    /* 8-bit unsigned integer */
    TIFF_ASCII  = 2,    /* 8-bit bytes w/ last byte null */
    TIFF_SHORT  = 3,    /* 16-bit unsigned integer */
    TIFF_LONG   = 4,    /* 32-bit unsigned integer */
    TIFF_RATIONAL   = 5,    /* 64-bit unsigned fraction */
    TIFF_SBYTE  = 6,    /* !8-bit signed integer */
    TIFF_UNDEFINED  = 7,    /* !8-bit untyped data */
    TIFF_SSHORT = 8,    /* !16-bit signed integer */
    TIFF_SLONG  = 9,    /* !32-bit signed integer */
    TIFF_SRATIONAL  = 10,   /* !64-bit signed fraction */
    TIFF_FLOAT  = 11,   /* !32-bit IEEE floating point */
    TIFF_DOUBLE = 12,   /* !64-bit IEEE floating point */
    TIFF_IFD    = 13    /* %32-bit unsigned integer (offset) */
} TIFFDataType;

/*
 * TIFF Tag Definitions.
 */
#define TIFFTAG_SUBFILETYPE     254 /* subfile data descriptor */
#define     FILETYPE_REDUCEDIMAGE   0x1 /* reduced resolution version */
#define     FILETYPE_PAGE       0x2 /* one page of many */
#define     FILETYPE_MASK       0x4 /* transparency mask */
#define TIFFTAG_OSUBFILETYPE        255 /* +kind of data in subfile */
#define     OFILETYPE_IMAGE     1   /* full resolution image data */
#define     OFILETYPE_REDUCEDIMAGE  2   /* reduced size image data */
#define     OFILETYPE_PAGE      3   /* one page of many */
#define TIFFTAG_IMAGEWIDTH      256 /* image width in pixels */
#define TIFFTAG_IMAGELENGTH     257 /* image height in pixels */
#define TIFFTAG_BITSPERSAMPLE       258 /* bits per channel (sample) */
#define TIFFTAG_COMPRESSION     259 /* data compression technique */
#define     COMPRESSION_NONE        1   /* dump mode */
#define     COMPRESSION_CCITTRLE    2   /* CCITT modified Huffman RLE */
#define     COMPRESSION_CCITTFAX3   3   /* CCITT Group 3 fax encoding */
#define     COMPRESSION_CCITT_T4        3       /* CCITT T.4 (TIFF 6 name) */
#define     COMPRESSION_CCITTFAX4   4   /* CCITT Group 4 fax encoding */
#define     COMPRESSION_CCITT_T6        4       /* CCITT T.6 (TIFF 6 name) */
#define     COMPRESSION_LZW     5       /* Lempel-Ziv  & Welch */
#define     COMPRESSION_OJPEG       6   /* !6.0 JPEG */
#define     COMPRESSION_JPEG        7   /* %JPEG DCT compression */
#define     COMPRESSION_NEXT        32766   /* NeXT 2-bit RLE */
#define     COMPRESSION_CCITTRLEW   32771   /* #1 w/ word alignment */
#define     COMPRESSION_PACKBITS    32773   /* Macintosh RLE */
#define     COMPRESSION_THUNDERSCAN 32809   /* ThunderScan RLE */
/* codes 32895-32898 are reserved for ANSI IT8 TIFF/IT <dkelly@apago.com) */
#define     COMPRESSION_IT8CTPAD    32895   /* IT8 CT w/padding */
#define     COMPRESSION_IT8LW       32896   /* IT8 Linework RLE */
#define     COMPRESSION_IT8MP       32897   /* IT8 Monochrome picture */
#define     COMPRESSION_IT8BL       32898   /* IT8 Binary line art */
/* compression codes 32908-32911 are reserved for Pixar */
#define     COMPRESSION_PIXARFILM   32908   /* Pixar companded 10bit LZW */
#define     COMPRESSION_PIXARLOG    32909   /* Pixar companded 11bit ZIP */
#define     COMPRESSION_DEFLATE     32946   /* Deflate compression */
#define     COMPRESSION_ADOBE_DEFLATE   8       /* Deflate compression,
as recognized by Adobe */
/* compression code 32947 is reserved for Oceana Matrix <dev@oceana.com> */
#define     COMPRESSION_DCS             32947   /* Kodak DCS encoding */
#define     COMPRESSION_JBIG        34661   /* ISO JBIG */
#define     COMPRESSION_SGILOG      34676   /* SGI Log Luminance RLE */
#define     COMPRESSION_SGILOG24    34677   /* SGI Log 24-bit packed */
#define     COMPRESSION_JP2000          34712   /* Leadtools JPEG2000 */
#define TIFFTAG_PHOTOMETRIC     262 /* photometric interpretation */
#define     PHOTOMETRIC_MINISWHITE  0   /* min value is white */
#define     PHOTOMETRIC_MINISBLACK  1   /* min value is black */
#define     PHOTOMETRIC_RGB     2   /* RGB color model */
#define     PHOTOMETRIC_PALETTE     3   /* color map indexed */
#define     PHOTOMETRIC_MASK        4   /* $holdout mask */
#define     PHOTOMETRIC_SEPARATED   5   /* !color separations */
#define     PHOTOMETRIC_YCBCR       6   /* !CCIR 601 */
#define     PHOTOMETRIC_CIELAB      8   /* !1976 CIE L*a*b* */
#define     PHOTOMETRIC_ICCLAB      9   /* ICC L*a*b* [Adobe TIFF Technote 4] */
#define     PHOTOMETRIC_ITULAB      10  /* ITU L*a*b* */
#define     PHOTOMETRIC_LOGL        32844   /* CIE Log2(L) */
#define     PHOTOMETRIC_LOGLUV      32845   /* CIE Log2(L) (u',v') */
#define TIFFTAG_THRESHHOLDING       263 /* +thresholding used on data */
#define     THRESHHOLD_BILEVEL      1   /* b&w art scan */
#define     THRESHHOLD_HALFTONE     2   /* or dithered scan */
#define     THRESHHOLD_ERRORDIFFUSE 3   /* usually floyd-steinberg */
#define TIFFTAG_CELLWIDTH       264 /* +dithering matrix width */
#define TIFFTAG_CELLLENGTH      265 /* +dithering matrix height */
#define TIFFTAG_FILLORDER       266 /* data order within a byte */
#define     FILLORDER_MSB2LSB       1   /* most significant -> least */
#define     FILLORDER_LSB2MSB       2   /* least significant -> most */
#define TIFFTAG_DOCUMENTNAME        269 /* name of doc. image is from */
#define TIFFTAG_IMAGEDESCRIPTION    270 /* info about image */
#define TIFFTAG_MAKE            271 /* scanner manufacturer name */
#define TIFFTAG_MODEL           272 /* scanner model name/number */
#define TIFFTAG_STRIPOFFSETS        273 /* offsets to data strips */
#define TIFFTAG_ORIENTATION     274 /* +image orientation */
#define     ORIENTATION_TOPLEFT     1   /* row 0 top, col 0 lhs */
#define     ORIENTATION_TOPRIGHT    2   /* row 0 top, col 0 rhs */
#define     ORIENTATION_BOTRIGHT    3   /* row 0 bottom, col 0 rhs */
#define     ORIENTATION_BOTLEFT     4   /* row 0 bottom, col 0 lhs */
#define     ORIENTATION_LEFTTOP     5   /* row 0 lhs, col 0 top */
#define     ORIENTATION_RIGHTTOP    6   /* row 0 rhs, col 0 top */
#define     ORIENTATION_RIGHTBOT    7   /* row 0 rhs, col 0 bottom */
#define     ORIENTATION_LEFTBOT     8   /* row 0 lhs, col 0 bottom */
#define TIFFTAG_SAMPLESPERPIXEL     277 /* samples per pixel */
#define TIFFTAG_ROWSPERSTRIP        278 /* rows per strip of data */
#define TIFFTAG_STRIPBYTECOUNTS     279 /* bytes counts for strips */
#define TIFFTAG_MINSAMPLEVALUE      280 /* +minimum sample value */
#define TIFFTAG_MAXSAMPLEVALUE      281 /* +maximum sample value */
#define TIFFTAG_XRESOLUTION     282 /* pixels/resolution in x */
#define TIFFTAG_YRESOLUTION     283 /* pixels/resolution in y */
#define TIFFTAG_PLANARCONFIG        284 /* storage organization */
#define     PLANARCONFIG_CONTIG     1   /* single image plane */
#define     PLANARCONFIG_SEPARATE   2   /* separate planes of data */
#define TIFFTAG_PAGENAME        285 /* page name image is from */
#define TIFFTAG_XPOSITION       286 /* x page offset of image lhs */
#define TIFFTAG_YPOSITION       287 /* y page offset of image lhs */
#define TIFFTAG_FREEOFFSETS     288 /* +byte offset to free block */
#define TIFFTAG_FREEBYTECOUNTS      289 /* +sizes of free blocks */
#define TIFFTAG_GRAYRESPONSEUNIT    290 /* $gray scale curve accuracy */
#define     GRAYRESPONSEUNIT_10S    1   /* tenths of a unit */
#define     GRAYRESPONSEUNIT_100S   2   /* hundredths of a unit */
#define     GRAYRESPONSEUNIT_1000S  3   /* thousandths of a unit */
#define     GRAYRESPONSEUNIT_10000S 4   /* ten-thousandths of a unit */
#define     GRAYRESPONSEUNIT_100000S    5   /* hundred-thousandths */
#define TIFFTAG_GRAYRESPONSECURVE   291 /* $gray scale response curve */
#define TIFFTAG_GROUP3OPTIONS       292 /* 32 flag bits */
#define TIFFTAG_T4OPTIONS       292 /* TIFF 6.0 proper name alias */
#define     GROUP3OPT_2DENCODING    0x1 /* 2-dimensional coding */
#define     GROUP3OPT_UNCOMPRESSED  0x2 /* data not compressed */
#define     GROUP3OPT_FILLBITS      0x4 /* fill to byte boundary */
#define TIFFTAG_GROUP4OPTIONS       293 /* 32 flag bits */
#define TIFFTAG_T6OPTIONS               293     /* TIFF 6.0 proper name */
#define     GROUP4OPT_UNCOMPRESSED  0x2 /* data not compressed */
#define TIFFTAG_RESOLUTIONUNIT      296 /* units of resolutions */
#define     RESUNIT_NONE        1   /* no meaningful units */
#define     RESUNIT_INCH        2   /* english */
#define     RESUNIT_CENTIMETER      3   /* metric */
#define TIFFTAG_PAGENUMBER      297 /* page numbers of multi-page */
#define TIFFTAG_COLORRESPONSEUNIT   300 /* $color curve accuracy */
#define     COLORRESPONSEUNIT_10S   1   /* tenths of a unit */
#define     COLORRESPONSEUNIT_100S  2   /* hundredths of a unit */
#define     COLORRESPONSEUNIT_1000S 3   /* thousandths of a unit */
#define     COLORRESPONSEUNIT_10000S    4   /* ten-thousandths of a unit */
#define     COLORRESPONSEUNIT_100000S   5   /* hundred-thousandths */
#define TIFFTAG_TRANSFERFUNCTION    301 /* !colorimetry info */
#define TIFFTAG_SOFTWARE        305 /* name & release */
#define TIFFTAG_DATETIME        306 /* creation date and time */
#define TIFFTAG_ARTIST          315 /* creator of image */
#define TIFFTAG_HOSTCOMPUTER        316 /* machine where created */
#define TIFFTAG_PREDICTOR       317 /* prediction scheme w/ LZW */
#define     PREDICTOR_NONE      1   /* no prediction scheme used */
#define     PREDICTOR_HORIZONTAL    2   /* horizontal differencing */
#define     PREDICTOR_FLOATINGPOINT 3   /* floating point predictor */
#define TIFFTAG_WHITEPOINT      318 /* image white point */
#define TIFFTAG_PRIMARYCHROMATICITIES   319 /* !primary chromaticities */
#define TIFFTAG_COLORMAP        320 /* RGB map for pallette image */
#define TIFFTAG_HALFTONEHINTS       321 /* !highlight+shadow info */
#define TIFFTAG_TILEWIDTH       322 /* !tile width in pixels */
#define TIFFTAG_TILELENGTH      323 /* !tile height in pixels */
#define TIFFTAG_TILEOFFSETS     324 /* !offsets to data tiles */
#define TIFFTAG_TILEBYTECOUNTS      325 /* !byte counts for tiles */
#define TIFFTAG_BADFAXLINES     326 /* lines w/ wrong pixel count */
#define TIFFTAG_CLEANFAXDATA        327 /* regenerated line info */
#define     CLEANFAXDATA_CLEAN      0   /* no errors detected */
#define     CLEANFAXDATA_REGENERATED    1   /* receiver regenerated lines */
#define     CLEANFAXDATA_UNCLEAN    2   /* uncorrected errors exist */
#define TIFFTAG_CONSECUTIVEBADFAXLINES  328 /* max consecutive bad lines */
#define TIFFTAG_SUBIFD          330 /* subimage descriptors */
#define TIFFTAG_INKSET          332 /* !inks in separated image */
#define     INKSET_CMYK         1   /* !cyan-magenta-yellow-black color */
#define     INKSET_MULTIINK     2   /* !multi-ink or hi-fi color */
#define TIFFTAG_INKNAMES        333 /* !ascii names of inks */
#define TIFFTAG_NUMBEROFINKS        334 /* !number of inks */
#define TIFFTAG_DOTRANGE        336 /* !0% and 100% dot codes */
#define TIFFTAG_TARGETPRINTER       337 /* !separation target */
#define TIFFTAG_EXTRASAMPLES        338 /* !info about extra samples */
#define     EXTRASAMPLE_UNSPECIFIED 0   /* !unspecified data */
#define     EXTRASAMPLE_ASSOCALPHA  1   /* !associated alpha data */
#define     EXTRASAMPLE_UNASSALPHA  2   /* !unassociated alpha data */
#define TIFFTAG_SAMPLEFORMAT        339 /* !data sample format */
#define     SAMPLEFORMAT_UINT       1   /* !unsigned integer data */
#define     SAMPLEFORMAT_INT        2   /* !signed integer data */
#define     SAMPLEFORMAT_IEEEFP     3   /* !IEEE floating point data */
#define     SAMPLEFORMAT_VOID       4   /* !untyped data */
#define     SAMPLEFORMAT_COMPLEXINT 5   /* !complex signed int */
#define     SAMPLEFORMAT_COMPLEXIEEEFP  6   /* !complex ieee floating */
#define TIFFTAG_SMINSAMPLEVALUE     340 /* !variable MinSampleValue */
#define TIFFTAG_SMAXSAMPLEVALUE     341 /* !variable MaxSampleValue */
#define TIFFTAG_CLIPPATH        343 /* %ClipPath
[Adobe TIFF technote 2] */
#define TIFFTAG_XCLIPPATHUNITS      344 /* %XClipPathUnits
[Adobe TIFF technote 2] */
#define TIFFTAG_YCLIPPATHUNITS      345 /* %YClipPathUnits
[Adobe TIFF technote 2] */
#define TIFFTAG_INDEXED         346 /* %Indexed
[Adobe TIFF Technote 3] */
#define TIFFTAG_JPEGTABLES      347 /* %JPEG table stream */
#define TIFFTAG_OPIPROXY        351 /* %OPI Proxy [Adobe TIFF technote] */
/*
 * Tags 512-521 are obsoleted by Technical Note #2 which specifies a
 * revised JPEG-in-TIFF scheme.
 */
#define TIFFTAG_JPEGPROC        512 /* !JPEG processing algorithm */
#define     JPEGPROC_BASELINE       1   /* !baseline sequential */
#define     JPEGPROC_LOSSLESS       14  /* !Huffman coded lossless */
#define TIFFTAG_JPEGIFOFFSET        513 /* !pointer to SOI marker */
#define TIFFTAG_JPEGIFBYTECOUNT     514 /* !JFIF stream length */
#define TIFFTAG_JPEGRESTARTINTERVAL 515 /* !restart interval length */
#define TIFFTAG_JPEGLOSSLESSPREDICTORS  517 /* !lossless proc predictor */
#define TIFFTAG_JPEGPOINTTRANSFORM  518 /* !lossless point transform */
#define TIFFTAG_JPEGQTABLES     519 /* !Q matrice offsets */
#define TIFFTAG_JPEGDCTABLES        520 /* !DCT table offsets */
#define TIFFTAG_JPEGACTABLES        521 /* !AC coefficient offsets */
#define TIFFTAG_YCBCRCOEFFICIENTS   529 /* !RGB -> YCbCr transform */
#define TIFFTAG_YCBCRSUBSAMPLING    530 /* !YCbCr subsampling factors */
#define TIFFTAG_YCBCRPOSITIONING    531 /* !subsample positioning */
#define     YCBCRPOSITION_CENTERED  1   /* !as in PostScript Level 2 */
#define     YCBCRPOSITION_COSITED   2   /* !as in CCIR 601-1 */
#define TIFFTAG_REFERENCEBLACKWHITE 532 /* !colorimetry info */
#define TIFFTAG_XMLPACKET       700 /* %XML packet
[Adobe XMP Specification,
 January 2004 */
#define TIFFTAG_OPIIMAGEID      32781   /* %OPI ImageID
 [Adobe TIFF technote] */
 /* tags 32952-32956 are private tags registered to Island Graphics */
#define TIFFTAG_REFPTS          32953   /* image reference points */
#define TIFFTAG_REGIONTACKPOINT     32954   /* region-xform tack point */
#define TIFFTAG_REGIONWARPCORNERS   32955   /* warp quadrilateral */
#define TIFFTAG_REGIONAFFINE        32956   /* affine transformation mat */
 /* tags 32995-32999 are private tags registered to SGI */
#define TIFFTAG_MATTEING        32995   /* $use ExtraSamples */
#define TIFFTAG_DATATYPE        32996   /* $use SampleFormat */
#define TIFFTAG_IMAGEDEPTH      32997   /* z depth of image */
#define TIFFTAG_TILEDEPTH       32998   /* z depth/data tile */
 /* tags 33300-33309 are private tags registered to Pixar */
 /*
  * TIFFTAG_PIXAR_IMAGEFULLWIDTH and TIFFTAG_PIXAR_IMAGEFULLLENGTH
  * are set when an image has been cropped out of a larger image.
  * They reflect the size of the original uncropped image.
  * The TIFFTAG_XPOSITION and TIFFTAG_YPOSITION can be used
  * to determine the position of the smaller image in the larger one.
  */
#define TIFFTAG_PIXAR_IMAGEFULLWIDTH    33300   /* full image size in x */
#define TIFFTAG_PIXAR_IMAGEFULLLENGTH   33301   /* full image size in y */
 /* Tags 33302-33306 are used to identify special image modes and data
  * used by Pixar's texture formats.
  */
#define TIFFTAG_PIXAR_TEXTUREFORMAT 33302   /* texture map format */
#define TIFFTAG_PIXAR_WRAPMODES     33303   /* s & t wrap modes */
#define TIFFTAG_PIXAR_FOVCOT        33304   /* cotan(fov) for env. maps */
#define TIFFTAG_PIXAR_MATRIX_WORLDTOSCREEN 33305
#define TIFFTAG_PIXAR_MATRIX_WORLDTOCAMERA 33306
 /* tag 33405 is a private tag registered to Eastman Kodak */
#define TIFFTAG_WRITERSERIALNUMBER      33405   /* device serial number */
 /* tag 33432 is listed in the 6.0 spec w/ unknown ownership */
#define TIFFTAG_COPYRIGHT       33432   /* copyright string */
 /* IPTC TAG from RichTIFF specifications */
#define TIFFTAG_RICHTIFFIPTC        33723
 /* 34016-34029 are reserved for ANSI IT8 TIFF/IT <dkelly@apago.com) */
#define TIFFTAG_IT8SITE         34016   /* site name */
#define TIFFTAG_IT8COLORSEQUENCE    34017   /* color seq. [RGB,CMYK,etc] */
#define TIFFTAG_IT8HEADER       34018   /* DDES Header */
#define TIFFTAG_IT8RASTERPADDING    34019   /* raster scanline padding */
#define TIFFTAG_IT8BITSPERRUNLENGTH 34020   /* # of bits in short run */
#define TIFFTAG_IT8BITSPEREXTENDEDRUNLENGTH 34021/* # of bits in long run */
#define TIFFTAG_IT8COLORTABLE       34022   /* LW colortable */
#define TIFFTAG_IT8IMAGECOLORINDICATOR  34023   /* BP/BL image color switch */
#define TIFFTAG_IT8BKGCOLORINDICATOR    34024   /* BP/BL bg color switch */
#define TIFFTAG_IT8IMAGECOLORVALUE  34025   /* BP/BL image color value */
#define TIFFTAG_IT8BKGCOLORVALUE    34026   /* BP/BL bg color value */
#define TIFFTAG_IT8PIXELINTENSITYRANGE  34027   /* MP pixel intensity value */
#define TIFFTAG_IT8TRANSPARENCYINDICATOR 34028  /* HC transparency switch */
#define TIFFTAG_IT8COLORCHARACTERIZATION 34029  /* color character. table */
#define TIFFTAG_IT8HCUSAGE      34030   /* HC usage indicator */
#define TIFFTAG_IT8TRAPINDICATOR    34031   /* Trapping indicator
 (untrapped=0, trapped=1) */
#define TIFFTAG_IT8CMYKEQUIVALENT   34032   /* CMYK color equivalents */
 /* tags 34232-34236 are private tags registered to Texas Instruments */
#define TIFFTAG_FRAMECOUNT              34232   /* Sequence Frame Count */
 /* tag 34377 is private tag registered to Adobe for PhotoShop */
#define TIFFTAG_PHOTOSHOP       34377
 /* tags 34665, 34853 and 40965 are documented in EXIF specification */
#define TIFFTAG_EXIFIFD         34665   /* Pointer to EXIF private directory */
 /* tag 34750 is a private tag registered to Adobe? */
#define TIFFTAG_ICCPROFILE      34675   /* ICC profile data */
 /* tag 34750 is a private tag registered to Pixel Magic */
#define TIFFTAG_JBIGOPTIONS     34750   /* JBIG options */
#define TIFFTAG_GPSIFD          34853   /* Pointer to GPS private directory */
 /* tags 34908-34914 are private tags registered to SGI */
#define TIFFTAG_FAXRECVPARAMS       34908   /* encoded Class 2 ses. parms */
#define TIFFTAG_FAXSUBADDRESS       34909   /* received SubAddr string */
#define TIFFTAG_FAXRECVTIME     34910   /* receive time (secs) */
#define TIFFTAG_FAXDCS          34911   /* encoded fax ses. params, Table 2/T.30 */
 /* tags 37439-37443 are registered to SGI <gregl@sgi.com> */
#define TIFFTAG_STONITS         37439   /* Sample value to Nits */
 /* tag 34929 is a private tag registered to FedEx */
#define TIFFTAG_FEDEX_EDR       34929   /* unknown use */
#define TIFFTAG_INTEROPERABILITYIFD 40965   /* Pointer to Interoperability private directory */
 /* Adobe Digital Negative (DNG) format tags */
#define TIFFTAG_DNGVERSION      50706   /* &DNG version number */
#define TIFFTAG_DNGBACKWARDVERSION  50707   /* &DNG compatibility version */
#define TIFFTAG_UNIQUECAMERAMODEL   50708   /* &name for the camera model */
#define TIFFTAG_LOCALIZEDCAMERAMODEL    50709   /* &localized camera model
 name */
#define TIFFTAG_CFAPLANECOLOR       50710   /* &CFAPattern->LinearRaw space
 mapping */
#define TIFFTAG_CFALAYOUT       50711   /* &spatial layout of the CFA */
#define TIFFTAG_LINEARIZATIONTABLE  50712   /* &lookup table description */
#define TIFFTAG_BLACKLEVELREPEATDIM 50713   /* &repeat pattern size for
 the BlackLevel tag */
#define TIFFTAG_BLACKLEVEL      50714   /* &zero light encoding level */
#define TIFFTAG_BLACKLEVELDELTAH    50715   /* &zero light encoding level
 differences (columns) */
#define TIFFTAG_BLACKLEVELDELTAV    50716   /* &zero light encoding level
 differences (rows) */
#define TIFFTAG_WHITELEVEL      50717   /* &fully saturated encoding
 level */
#define TIFFTAG_DEFAULTSCALE        50718   /* &default scale factors */
#define TIFFTAG_DEFAULTCROPORIGIN   50719   /* &origin of the final image
 area */
#define TIFFTAG_DEFAULTCROPSIZE     50720   /* &size of the final image 
 area */
#define TIFFTAG_COLORMATRIX1        50721   /* &XYZ->reference color space
 transformation matrix 1 */
#define TIFFTAG_COLORMATRIX2        50722   /* &XYZ->reference color space
 transformation matrix 2 */
#define TIFFTAG_CAMERACALIBRATION1  50723   /* &calibration matrix 1 */
#define TIFFTAG_CAMERACALIBRATION2  50724   /* &calibration matrix 2 */
#define TIFFTAG_REDUCTIONMATRIX1    50725   /* &dimensionality reduction
 matrix 1 */
#define TIFFTAG_REDUCTIONMATRIX2    50726   /* &dimensionality reduction
 matrix 2 */
#define TIFFTAG_ANALOGBALANCE       50727   /* &gain applied the stored raw
 values*/
#define TIFFTAG_ASSHOTNEUTRAL       50728   /* &selected white balance in
 linear reference space */
#define TIFFTAG_ASSHOTWHITEXY       50729   /* &selected white balance in
 x-y chromaticity
 coordinates */
#define TIFFTAG_BASELINEEXPOSURE    50730   /* &how much to move the zero
 point */
#define TIFFTAG_BASELINENOISE       50731   /* &relative noise level */
#define TIFFTAG_BASELINESHARPNESS   50732   /* &relative amount of
 sharpening */
#define TIFFTAG_BAYERGREENSPLIT     50733   /* &how closely the values of
 the green pixels in the
 blue/green rows track the
 values of the green pixels
 in the red/green rows */
#define TIFFTAG_LINEARRESPONSELIMIT 50734   /* &non-linear encoding range */
#define TIFFTAG_CAMERASERIALNUMBER  50735   /* &camera's serial number */
#define TIFFTAG_LENSINFO        50736   /* info about the lens */
#define TIFFTAG_CHROMABLURRADIUS    50737   /* &chroma blur radius */
#define TIFFTAG_ANTIALIASSTRENGTH   50738   /* &relative strength of the
 camera's anti-alias filter */
#define TIFFTAG_SHADOWSCALE     50739   /* &used by Adobe Camera Raw */
#define TIFFTAG_DNGPRIVATEDATA      50740   /* &manufacturer's private data */
#define TIFFTAG_MAKERNOTESAFETY     50741   /* &whether the EXIF MakerNote
 tag is safe to preserve
 along with the rest of the
 EXIF data */
#define TIFFTAG_CALIBRATIONILLUMINANT1  50778   /* &illuminant 1 */
#define TIFFTAG_CALIBRATIONILLUMINANT2  50779   /* &illuminant 2 */
#define TIFFTAG_BESTQUALITYSCALE    50780   /* &best quality multiplier */
#define TIFFTAG_RAWDATAUNIQUEID     50781   /* &unique identifier for
 the raw image data */
#define TIFFTAG_ORIGINALRAWFILENAME 50827   /* &file name of the original
 raw file */
#define TIFFTAG_ORIGINALRAWFILEDATA 50828   /* &contents of the original
 raw file */
#define TIFFTAG_ACTIVEAREA      50829   /* &active (non-masked) pixels
 of the sensor */
#define TIFFTAG_MASKEDAREAS     50830   /* &list of coordinates
 of fully masked pixels */
#define TIFFTAG_ASSHOTICCPROFILE    50831   /* &these two tags used to */
#define TIFFTAG_ASSHOTPREPROFILEMATRIX  50832   /* map cameras's color space
 into ICC profile space */
#define TIFFTAG_CURRENTICCPROFILE   50833   /* & */
#define TIFFTAG_CURRENTPREPROFILEMATRIX 50834   /* & */
 /* tag 65535 is an undefined tag used by Eastman Kodak */
#define TIFFTAG_DCSHUESHIFTVALUES       65535   /* hue shift correction data */

 /*
 * The following are ``pseudo tags'' that can be used to control
 * codec-specific functionality.  These tags are not written to file.
 * Note that these values start at 0xffff+1 so that they'll never
 * collide with Aldus-assigned tags.
 *
 * If you want your private pseudo tags ``registered'' (i.e. added to
                                                        * this file), please post a bug report via the tracking system at
 * http://www.remotesensing.org/libtiff/bugs.html with the appropriate
 * C definitions to add.
 */
#define TIFFTAG_FAXMODE         65536   /* Group 3/4 format control */
#define     FAXMODE_CLASSIC 0x0000      /* default, include RTC */
#define     FAXMODE_NORTC   0x0001      /* no RTC at end of data */
#define     FAXMODE_NOEOL   0x0002      /* no EOL code at end of row */
#define     FAXMODE_BYTEALIGN   0x0004      /* byte align row */
#define     FAXMODE_WORDALIGN   0x0008      /* word align row */
#define     FAXMODE_CLASSF  FAXMODE_NORTC   /* TIFF Class F */
#define TIFFTAG_JPEGQUALITY     65537   /* Compression quality level */
 /* Note: quality level is on the IJG 0-100 scale.  Default value is 75 */
#define TIFFTAG_JPEGCOLORMODE       65538   /* Auto RGB<=>YCbCr convert? */
#define     JPEGCOLORMODE_RAW   0x0000      /* no conversion (default) */
#define     JPEGCOLORMODE_RGB   0x0001      /* do auto conversion */
#define TIFFTAG_JPEGTABLESMODE      65539   /* What to put in JPEGTables */
#define     JPEGTABLESMODE_QUANT 0x0001     /* include quantization tbls */
#define     JPEGTABLESMODE_HUFF 0x0002      /* include Huffman tbls */
 /* Note: default is JPEGTABLESMODE_QUANT | JPEGTABLESMODE_HUFF */
#define TIFFTAG_FAXFILLFUNC     65540   /* G3/G4 fill function */
#define TIFFTAG_PIXARLOGDATAFMT     65549   /* PixarLogCodec I/O data sz */
#define     PIXARLOGDATAFMT_8BIT    0   /* regular u_char samples */
#define     PIXARLOGDATAFMT_8BITABGR    1   /* ABGR-order u_chars */
#define     PIXARLOGDATAFMT_11BITLOG    2   /* 11-bit log-encoded (raw) */
#define     PIXARLOGDATAFMT_12BITPICIO  3   /* as per PICIO (1.0==2048) */
#define     PIXARLOGDATAFMT_16BIT   4   /* signed short samples */
#define     PIXARLOGDATAFMT_FLOAT   5   /* IEEE float samples */
 /* 65550-65556 are allocated to Oceana Matrix <dev@oceana.com> */
#define TIFFTAG_DCSIMAGERTYPE           65550   /* imager model & filter */
#define     DCSIMAGERMODEL_M3           0       /* M3 chip (1280 x 1024) */
#define     DCSIMAGERMODEL_M5           1       /* M5 chip (1536 x 1024) */
#define     DCSIMAGERMODEL_M6           2       /* M6 chip (3072 x 2048) */
#define     DCSIMAGERFILTER_IR          0       /* infrared filter */
#define     DCSIMAGERFILTER_MONO        1       /* monochrome filter */
#define     DCSIMAGERFILTER_CFA         2       /* color filter array */
#define     DCSIMAGERFILTER_OTHER       3       /* other filter */
#define TIFFTAG_DCSINTERPMODE           65551   /* interpolation mode */
#define     DCSINTERPMODE_NORMAL        0x0     /* whole image, default */
#define     DCSINTERPMODE_PREVIEW       0x1     /* preview of image (384x256) */
#define TIFFTAG_DCSBALANCEARRAY         65552   /* color balance values */
#define TIFFTAG_DCSCORRECTMATRIX        65553   /* color correction values */
#define TIFFTAG_DCSGAMMA                65554   /* gamma value */
#define TIFFTAG_DCSTOESHOULDERPTS       65555   /* toe & shoulder points */
#define TIFFTAG_DCSCALIBRATIONFD        65556   /* calibration file desc */
 /* Note: quality level is on the ZLIB 1-9 scale. Default value is -1 */
#define TIFFTAG_ZIPQUALITY      65557   /* compression quality level */
#define TIFFTAG_PIXARLOGQUALITY     65558   /* PixarLog uses same scale */
 /* 65559 is allocated to Oceana Matrix <dev@oceana.com> */
#define TIFFTAG_DCSCLIPRECTANGLE    65559   /* area of image to acquire */
#define TIFFTAG_SGILOGDATAFMT       65560   /* SGILog user data format */
#define     SGILOGDATAFMT_FLOAT     0   /* IEEE float samples */
#define     SGILOGDATAFMT_16BIT     1   /* 16-bit samples */
#define     SGILOGDATAFMT_RAW       2   /* uninterpreted data */
#define     SGILOGDATAFMT_8BIT      3   /* 8-bit RGB monitor values */
#define TIFFTAG_SGILOGENCODE        65561 /* SGILog data encoding control*/
#define     SGILOGENCODE_NODITHER   0     /* do not dither encoded values*/
#define     SGILOGENCODE_RANDITHER  1     /* randomly dither encd values */

 /*
  * EXIF tags
  */
#define EXIFTAG_EXPOSURETIME        33434   /* Exposure time */
#define EXIFTAG_FNUMBER         33437   /* F number */
#define EXIFTAG_EXPOSUREPROGRAM     34850   /* Exposure program */
#define EXIFTAG_SPECTRALSENSITIVITY 34852   /* Spectral sensitivity */
#define EXIFTAG_ISOSPEEDRATINGS     34855   /* ISO speed rating */
#define EXIFTAG_OECF            34856   /* Optoelectric conversion
 factor */
#define EXIFTAG_EXIFVERSION     36864   /* Exif version */
#define EXIFTAG_DATETIMEORIGINAL    36867   /* Date and time of original
 data generation */
#define EXIFTAG_DATETIMEDIGITIZED   36868   /* Date and time of digital
 data generation */
#define EXIFTAG_COMPONENTSCONFIGURATION 37121   /* Meaning of each component */
#define EXIFTAG_COMPRESSEDBITSPERPIXEL  37122   /* Image compression mode */
#define EXIFTAG_SHUTTERSPEEDVALUE   37377   /* Shutter speed */
#define EXIFTAG_APERTUREVALUE       37378   /* Aperture */
#define EXIFTAG_BRIGHTNESSVALUE     37379   /* Brightness */
#define EXIFTAG_EXPOSUREBIASVALUE   37380   /* Exposure bias */
#define EXIFTAG_MAXAPERTUREVALUE    37381   /* Maximum lens aperture */
#define EXIFTAG_SUBJECTDISTANCE     37382   /* Subject distance */
#define EXIFTAG_METERINGMODE        37383   /* Metering mode */
#define EXIFTAG_LIGHTSOURCE     37384   /* Light source */
#define EXIFTAG_FLASH           37385   /* Flash */
#define EXIFTAG_FOCALLENGTH     37386   /* Lens focal length */
#define EXIFTAG_SUBJECTAREA     37396   /* Subject area */
#define EXIFTAG_MAKERNOTE       37500   /* Manufacturer notes */
#define EXIFTAG_USERCOMMENT     37510   /* User comments */
#define EXIFTAG_SUBSECTIME      37520   /* DateTime subseconds */
#define EXIFTAG_SUBSECTIMEORIGINAL  37521   /* DateTimeOriginal subseconds */
#define EXIFTAG_SUBSECTIMEDIGITIZED 37522   /* DateTimeDigitized subseconds */
#define EXIFTAG_FLASHPIXVERSION     40960   /* Supported Flashpix version */
#define EXIFTAG_COLORSPACE      40961   /* Color space information */
#define EXIFTAG_PIXELXDIMENSION     40962   /* Valid image width */
#define EXIFTAG_PIXELYDIMENSION     40963   /* Valid image height */
#define EXIFTAG_RELATEDSOUNDFILE    40964   /* Related audio file */
#define EXIFTAG_FLASHENERGY     41483   /* Flash energy */
#define EXIFTAG_SPATIALFREQUENCYRESPONSE 41484  /* Spatial frequency response */
#define EXIFTAG_FOCALPLANEXRESOLUTION   41486   /* Focal plane X resolution */
#define EXIFTAG_FOCALPLANEYRESOLUTION   41487   /* Focal plane Y resolution */
#define EXIFTAG_FOCALPLANERESOLUTIONUNIT 41488  /* Focal plane resolution unit */
#define EXIFTAG_SUBJECTLOCATION     41492   /* Subject location */
#define EXIFTAG_EXPOSUREINDEX       41493   /* Exposure index */
#define EXIFTAG_SENSINGMETHOD       41495   /* Sensing method */
#define EXIFTAG_FILESOURCE      41728   /* File source */
#define EXIFTAG_SCENETYPE       41729   /* Scene type */
#define EXIFTAG_CFAPATTERN      41730   /* CFA pattern */
#define EXIFTAG_CUSTOMRENDERED      41985   /* Custom image processing */
#define EXIFTAG_EXPOSUREMODE        41986   /* Exposure mode */
#define EXIFTAG_WHITEBALANCE        41987   /* White balance */
#define EXIFTAG_DIGITALZOOMRATIO    41988   /* Digital zoom ratio */
#define EXIFTAG_FOCALLENGTHIN35MMFILM   41989   /* Focal length in 35 mm film */
#define EXIFTAG_SCENECAPTURETYPE    41990   /* Scene capture type */
#define EXIFTAG_GAINCONTROL     41991   /* Gain control */
#define EXIFTAG_CONTRAST        41992   /* Contrast */
#define EXIFTAG_SATURATION      41993   /* Saturation */
#define EXIFTAG_SHARPNESS       41994   /* Sharpness */
#define EXIFTAG_DEVICESETTINGDESCRIPTION 41995  /* Device settings description */
#define EXIFTAG_SUBJECTDISTANCERANGE    41996   /* Subject distance range */
#define EXIFTAG_GAINCONTROL     41991   /* Gain control */
#define EXIFTAG_GAINCONTROL     41991   /* Gain control */
#define EXIFTAG_IMAGEUNIQUEID       42016   /* Unique image ID */

#endif /* _TIFF_ */

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